Street-railway



(No Model.)

W. L. JUDSON.

STREET RAILWAY. No. 423.872. Patented ar. 18, 1890.

N ETERS. mic-Utbognwhar, Washington. u. c.

UNITED STATES J lV HITCOMB L. JUDSQN, OF MINNEAPOLIS, MINNESOTA.

PATENT OFFICE.

STREET-RAILWAY.

SPECIFICATION forming part of Letters Patent No. 423,872, dated March18, 1890.

Application filed August '7, 1889. Serial No. 319,986. (No model.)

To ctZZ whom, it may concern.-

of the city of Minneapolis, county of Hennepin, State of Minnesota, haveinvented certain new and useful Improvements in Street- Railways, ofwhich the following is a specification, reference being had to theaccompanying drawings.

Myinvention relates to that system of propelling street-cars and othercarriages of my invention set forth in those several United StatesLetters Patent issued of date May '7, 1889, numbered, respectively,402,674, 402,933, and 402,934. In that system, as will appear onreference to the above-identified patents, a driving drum or shaftextends along the line of travel and is revolved by a series ofstationary motors arranged at suitable intervals. Therotary motion ofthe drum is converted into a rectilinear motion on the car by sets ofangularly-adjustable friction-wheels connected with the car andengageable with the drum on pitch-lines Variable and reversible at will.

My invention herein set forth has for its object to adapt this system toturn-outs and branch lines by suitable switch mechanism, whereby a carmay be run from themain line to the branch or turn-out, and conversely,at will and my preferred construction is such that the switch isoperated automatically from the car. To this end the main-line drum isdivided at the switch-point and the adjacent divisions terminate inseparate uncoupled bearings at the switch-point, the respectivedivisions being driven by separate motors. The side line or turn-out isalso uncoupled from the main line and is either driven by a separatemotor or indirectly by intermediate gearing from a main-line motor. Thedrum is composed of separate straight sections coupled together in sucha manner as to permit angular adjustment with reference to each other.The terminal drum section or sections of one division of the main lineare mounted in movable bearings and swing from their coupling with thelast fixed section as a pivot. The pivoted section or sections maytherefore be swung at its free end and made to register either with thenext I division of the main line or the side line at Be it known that I,WHnrooMB L. J UDSON, a citizen of the United States, and a residentwill. This of course could be done byacolnmon draw-bar and han d-lever,as in ordinary raiLsWiLches; but to render the switch automatic Iarrange a crank-shaft parallel and adjacent to the main-line drum of alength to extend a short distance each way beyond the switch-point.Connecting-rods unite the cranks of this shaft with the free ends of thepivoted drum-sections. The crank-shaft is provided at its extremitieswith enlarged or drum-like portions having on their. peripheries spiralcams. One of the friction-wheel trucks or some other dependent portionof 6 the car is provided with a movable projection or cam-lever underthe control of the operafor on the car, which may be rendered rigid withthe car in a position to engage with the spiral cams to operate theswitch. The piv- 7o oted section of the drum is normallyin registrationwith the most used line. If the car is to continue on the main line andthe switch be in its normal position, the cam-lever, being in its normalposition, will pass clear of the cams; but if the switch 'be out of itsnormal position the cam-1ever will engage with the cam and close theswitch-section ahead of the car. If it is desired to take the side trackand the switch be in its normal position, the cam-lever is set in itsswitching position, and

it will then engage with the cam and swing the switch to the side track.

I have illustrated my invention in the accompanying drawings. Therein,like letters referring to like parts throughout, Figure 1 is a plan viewof my invention with the car removed. Fig. 2 is a vertical cross-sectionwith a car in position; and Fig. 3 is a detail,

partially in side elevation and partially in section, showing themovable bearings for the pivoted section of the drum.

A B are the divisions of the main-line drum.

0 is the drums for turn-out or branch line.

Z9 Z) are the end sections of division B, 5 mounted at their free endsin movable bearings D. These two sections are coupled together, and thesecond section b is coupled to the last fixed sections by any suitablecoupling permitting angular adjustment at the coupling-space, and aretherefore driven from division B of the main-line drum.

E are the supporting conduit-yokes.

F are guides fixed to the conduit for the movable drum-bearings D.

G is the switch crank-shaft, having the enlarged ends 9 g. G and G arethe spiral cams thereon.

II are the connections from the cranks of the crank-shaft to the movablebearings D.

K is the car-body; L, the friction-wheel truck; M, the standard andbolster connecting the car-body and the truck.

N are the friction-wheels.

P is the pivoted cam-lever on the truck L, provided with rollers orknobs p p on its opposite extremities for engagement with the cam on theswitch crank-shaft. This camlever, as shown, is composed of a pair ofarms set at an angle to each other and fulcrumed at their point of unionto the truck.

Q is a connection extending to within reach of the operator of the carfor shifting the position of its extremities at will. The proj ectionsor arms 17 19 extend on opposite sides of the truck, so as to makeitimmaterial which end of the car goes foremost.

The operation is evident from the description already given.

hat I claim, and desire to secure by Letters Patent, is as follows:

1. The combinatiomwith a movable car,of main-line and branch-line driving-drums having a movable section at their convergence adapted toregister with either at will and friction-wheels connected with the carengagcable with said drum at an angle thereto.

The con1bination,with a movable car, of main-line and branch-linedriving-drums having a pivoted or switch section at their point ofconvergence, friction-wheels on the car engageable at an angle with saiddrum, and mechanism operated by the car to open and close saidswitch-section.

The combinatiomwith a movable car, of main and branch line driving-drumshaving a pivoted or switch section at their convergence, friction-wheelsconnected with the car engageable with said drum at an angle thereto, acrank-shaft adjacent to said drum, with connections to saidswitch-section, and provided with spiral cams, and a cam-lever on thecar adapted to engage with said cams to operate the switch,substantially as described.

4. The combination, with a movable car, of main-line and branch-line driving-drums having a movable or switch section at their convergence,friction wheel trucks connected with the car and having friction-wheelsengageable with the drums at an angle thereto, a crank-shaft adjacent tothe main-line drum, connections from the same to the movable section,spiral cams on the opposite ends of said crank-shaft, a cam-leverfulcrumed to said truck with projecting arms, and a connection to thecar-body.

EMMA F. ELMORE, JAS. F. WILLIAMsON.

